There may be several network interfaces on a server, e.g., lo, eth0, eth1
From the route table, I know that eth0 is connected to the default gateway. The address of the default gateway, for example, ...

I have an amazon server (AWS) with a security group that blocks all the ip addresses except mine.
The problem is that I use my computer through different wifi hotspots so my ip address often changes. ...

I'm trying to troubleshoot a recent network problem of mine, whereas occasionally I cannot connect to some websites or it takes forever. I tried doing a traceroute today in order to learn more about ...

I have successfully setup a DNS server on my local virtual machine and its running and I've mapped 2 public IP's with my domain name (****.com). I also created reverse lookup zones which basically map ...

I have a website which is currently assigned an IP 64.XXX etc from my hosting provider. This IP when looked up comes up clean with all Blacklist checks that I run. However, I am also being assigned an ...

I have been wondering why are there many domain names assigning public address that already owned by other (apart from shared hosting/ip), for example hundreds or thousands domain names assigned (or ...

I have written a server in C# for windows and it works fine. A week back I setup a dynamic domain name with No-Ip.com and now my server serves pages at the address nabeel.ddns.net. I was viewing my ...

As the title says I want to have one SSL certificate for multiple instances in amazon AWS. The multiple instances are connected to the internet through an load balancer. To make an SSL certificate and ...

I have VPS with 3 public IP - Debian 7. I would like to have 3 L2TP damemons (one ip each) NATing traffic to each ip. Something like this l2tp_multiple_public_ip_diagram. I have set up l2tp daemon for ...

Suppose my computer connections are filtered by a firewall on which I have no information and no control. Will the administrators of the network will know which websites I did visit thanks to their ...

I have been trying to setup a task in the task scheduler that sends an email to me when the server starts. The email should contain the external IP address of the azure virtual machine.
What should ...

I'm serving HTTP traffic on port 80 through an ELB. Since a short time, a growing amount of clients are asking me what our IP addresses are (to harvest data). Apparently they can't whitelist the DNS ...

I understand you should not point a MX record at an IP address directly, but should instead point it to an A record, which, in turns, points to the IP address of your mail server.
But, in principle, ...

As I understand it IP 192.168.20.4/24 can only describe a host (24) on net 192.168.20.[1-254].
Now when describing a net; can 192.168.20.4/24 be a valid network ID, or should such a network ID always ...

I currently have a firewall set up as x.x.1.1 and a secondary of x.x.2.1 on the firewall. On the DHCP server I have a superscope with 2 scopes handing out DHCP addresses. I was told it would be best ...

I'm trying to resolve a DNS issue and am running short of ideas. Google doesn't seem to be helping, either.
When I use my local caching name server to resolve external host names, it always returns ...

I am trying to test for a specific IP Address and then change it if it is not there in Powershell.
I am not sure what is wrong with my code:
if($wmi.ipaddress -ne "10.0.0.15") {$wmi = Get-WmiObject ...